Oil-cup for burning crude petroleum-oil



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R. W. SMITH.

OIL CUP FOR BURNING CRUDE PETROLEUM OIL.

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(No Model.) 2 Sheets-Sheet 2.

R. W. SMITH.

OIL 0UP FOR BURNING CRUDE PETROLEUM 01L. No. 387,927. A Patented Aug. 14, 1888.

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UNITED STATES IATENT @EETCE.

ROBERT W. SMITH, OF TOLEDO, OHIO.

OIL-CUP FOR BURNING CRUDE PETROLEUM-OIL.

SPECIFICATION forming part of Letters Patent No. 387,927, dated August 14:, 1888.

Application filed September 19, 1887. Serial No. 250,105.

To 00% whom it may concern.-

Be it known that I, ROBERT W. SMITH, of Toledo, in the county of Lucas and State of Ohio, have invented a certain new and useful Improvement in Oil-Cups for Burning Crude Petroleum Oil. of which the following is a specification, reference being bad to the accompanying drawings.

My improved oil-cup is designed to be used in that class of apparatus in which crude petroleum oil is forced up into the bottom of an oil-cup,to be overflowed around its edges and to meet a downwardly-directed draft for combustion. Such an apparatus I have shown in my pending application, Serial No. 238,764, filed May 19, 1887 The object of my invention is to improve the cornbustiomwhich takes place by the overflow of oil around the margin of the cup. I have found by experiment that ordinarily with an oil-cup constructed as heretofore there is great difficulty in getting the overflow and combustion to extend entirely around the edge ofthe cup, so as to form a complete circle. Generally this circle will be broken and the combustion will take place upon one side of the cup, especially when a large cup is used. I have found that this difficulty can be overcome and the combustion caused to take place in an uninterrupted circle entirely around the edge of the cup in the manner Iwill now proceed to describe in detail; and my invention consists in the peculiar devices defined in my claims.

In the accompanying drawings, Figurel is an elevation, partly in section, of a stove containing my invention. Fig. 2 is a plan view of the oil-cup detached. Fig. 3 is a plan view of one of the rings or disks detached. Fig. 4 shows my invention applied to heata locomotive-boiler.

Referring to the letters upon the drawings, A indicates a stove with an air-flue, B, for downdraft, as shown by the arrows,the lower end of which is a combustion-chamber, and a pipe or chimney, C.

D indicates an oil-cup with an opening in its bottom suitable for the admission of oil under pressure through an inlet-pipe,D, in

an upward direction, to be overflowed around the outside of the cup.

(No model.)

E indicates a series of annular disks placed one upon another on the top of the cup, and Findicates a cap closing the opening in the top or smallest disk. These disks are turned smooth and fit snugly, the first one upon the top of the cup and the others one upon another, and the cap also fits snugly upon the topmost disk; but the heated fluid finds its way out between the disks in thin streams all around, and by this device Iam able to get a continuous circle of flame all around the oilcup. I can increase or diminish the capacity of the burner by increasing or diminishing the number of these disk-rings, and the oil-pressure may be varied at will, and may be applied in any usual way.

G indicates a screen or perforated diaphragm over the cup, which serves'to break up and distribute the incoming air to support com;

bustion all about the cup, and which gives a much better result in practice than can be at- 'Patentof the United States, is

1. The combinatiomwith an oil-cup open at its bottom and provided there with an oil-inlet pipe, of a series of disks, one resting on an other above the top of the cup and clamped down to place, substantially as set forth.

2. In a stove,the combination,with a downdraft-flue, the lower end of which is a combustion-chamber, of a screen or perforated diaphragm, G, between the due and combustion chamber, and an overflow oil-cup below the screen open at its bottom and provided there with an oil-inlet pipe, and a series of disks at the top of the cup clamped down to place, substantially as set forth.

In testimony whereof I have hereunto subscribed my name.

ROBERT W. SMITH.

Witnesses:

E. W. TOLERTON, HUGH F. SHUNGK. 

